function LoneAnonymousOperationRule
import { LoneAnonymousOperationRule } from "https://dotland.deno.dev/x/graphql_deno@v15.0.0/lib/validation/rules/LoneAnonymousOperationRule.d.ts";

Lone anonymous operation

A GraphQL document is only valid if when it contains an anonymous operation (the query short-hand) that it contains only that one operation definition.